diff options
| -rw-r--r-- | target-i386/cpu.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/target-i386/cpu.c b/target-i386/cpu.c index 217500c735..52e335f145 100644 --- a/target-i386/cpu.c +++ b/target-i386/cpu.c @@ -2588,6 +2588,16 @@ static void x86_cpu_reset(CPUState *s) env->xcr0 = 1; + /* + * SDM 11.11.5 requires: + * - IA32_MTRR_DEF_TYPE MSR.E = 0 + * - IA32_MTRR_PHYSMASKn.V = 0 + * All other bits are undefined. For simplification, zero it all. + */ + env->mtrr_deftype = 0; + memset(env->mtrr_var, 0, sizeof(env->mtrr_var)); + memset(env->mtrr_fixed, 0, sizeof(env->mtrr_fixed)); + #if !defined(CONFIG_USER_ONLY) /* We hard-wire the BSP to the first CPU. */ if (s->cpu_index == 0) { |